23 notable people died on August 21, including Subrahmanyan Chandrasekhar, Stephen I of Hungary, Ibn Hazm.
21st Century
3 deaths
Gadalla Gubara
documentary filmmakerfilm director
Sudanese filmmaker
Helmut Piirimäe
historian
Estonian historian (1930–2017)
KH
Kenneth H. Hunt
mechanical engineerphysicist
Australian physicist
20th Century
12 deaths
Subrahmanyan Chandrasekhar
astronomerastrophysicist
Indian-American astrophysicist
Syed Ata Ullah Shah Bukhari
poetpolitician
Islamic scholar (1892-1961)
Sigrid Gillner
journalistpolitician
Swedish politician
Carl Barcklind
actordirector
Swedish actor, singer and film director (1873–1945)
Adolf Fonahn
historianorientalist
Norwegian physician and orientalist (1873-1940)
Steingrímur Thorsteinsson
poetwriter
Poet and writer (1831-1913)
Jean-Pierre Nuel
ophthalmologistphotographer
Belgian ophthalmologist and physiologist (1847-1920)
Israel Paldi
artistpainter
Painter (1892-1979)
Olaf Helset
military officersporting director
Norwegian general (1892-1960)
Santiago Key Ayala
historian
Venezuelan historian, writer, and diplomat (1874-1959)
Bolesław Barbacki
painter
Polish artist (1891-1941)
HA
Hans Günther Adler
historianphilosopher
Czech-British novelist and poet, sociologist and historian in German language (1910–1988)
19th Century
3 deaths
Claude-Louis Navier
civil engineereconomist
French engineer and physicist (1785–1836)
Leona Vicario
journalistpolitician
Mexican spy
Markos Botsaris
military officer
General and hero of the Greek War of Independence and more
18th Century
2 deaths
Johann Samuel König
mathematicianuniversity teacher
German mathematician
Thomas Tryon
essayistmerchant
English writer (1634–1703)
13th Century
1 death
John of Wallingford
historianmonk
Benedictine monk at the Abbey of St Albans, associate of Matthew Paris
11th Century
2 deaths
Stephen I of Hungary
monarch
11th-century king of Hungary and saint
Ibn Hazm
geographerIslamic jurist
Andalusian Muslim polymath, historian, jurist, philosopher and theologian (994–1064)
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Births, events, and adjacent days.